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You may also use the -o flag to specify an output file name. gpg -o desired_filename name_of_file The default encryption cipher is AES-128. You may also use another encryption cipher, such as AES256, TWOFISH, or BLOWFISH. gpg -c --cipher-algo AES256 name_of_file To decrypt the same file, simply enter gpg name_of_file and enter the password.